1 // Copyright (C) 2014-2020 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "GeomAlgoAPI_ShapeTools.h"
22 #include "GeomAlgoAPI_SketchBuilder.h"
24 #include <GeomAPI_Ax1.h>
25 #include <GeomAPI_Edge.h>
26 #include <GeomAPI_Dir.h>
27 #include <GeomAPI_Face.h>
28 #include <GeomAPI_Pln.h>
29 #include <GeomAPI_Pnt.h>
30 #include <GeomAPI_Wire.h>
32 #include <Bnd_Box.hxx>
34 #include <BRep_Tool.hxx>
35 #include <BRep_Builder.hxx>
36 #include <BRepAlgo.hxx>
37 #include <BRepAlgo_FaceRestrictor.hxx>
38 #include <BRepAdaptor_Curve.hxx>
39 #include <BRepBndLib.hxx>
40 #include <BRepBuilderAPI_FindPlane.hxx>
41 #include <BRepBuilderAPI_MakeEdge.hxx>
42 #include <BRepBuilderAPI_MakeFace.hxx>
43 #include <BRepBuilderAPI_MakeVertex.hxx>
44 #include <BRepCheck_Analyzer.hxx>
45 #include <BRepExtrema_DistShapeShape.hxx>
46 #include <BRepExtrema_ExtCF.hxx>
47 #include <BRepGProp.hxx>
48 #include <BRepTools.hxx>
49 #include <BRepTools_WireExplorer.hxx>
50 #include <BRepTopAdaptor_FClass2d.hxx>
51 #include <BRepClass_FaceClassifier.hxx>
52 #include <BRepLib_CheckCurveOnSurface.hxx>
53 #include <BRepLProp.hxx>
55 #include <BOPAlgo_Builder.hxx>
57 #include <Geom2d_Curve.hxx>
58 #include <Geom2d_Curve.hxx>
60 #include <Geom_CylindricalSurface.hxx>
61 #include <Geom_Line.hxx>
62 #include <Geom_Plane.hxx>
63 #include <Geom_RectangularTrimmedSurface.hxx>
65 #include <GeomAPI_ProjectPointOnCurve.hxx>
66 #include <GeomAPI_ShapeIterator.h>
68 #include <GeomLib_IsPlanarSurface.hxx>
69 #include <GeomLib_Tool.hxx>
70 #include <GeomAPI_IntCS.hxx>
73 #include <GProp_GProps.hxx>
75 #include <IntAna_IntConicQuad.hxx>
76 #include <IntAna_Quadric.hxx>
78 #include <ShapeAnalysis.hxx>
79 #include <ShapeAnalysis_Surface.hxx>
82 #include <TopoDS_Edge.hxx>
83 #include <TopoDS_Face.hxx>
84 #include <TopoDS_Shape.hxx>
85 #include <TopoDS_Shell.hxx>
86 #include <TopoDS_Vertex.hxx>
87 #include <TopoDS_Builder.hxx>
90 #include <TopExp_Explorer.hxx>
92 #include <TopTools_ListIteratorOfListOfShape.hxx>
94 #include <NCollection_Vector.hxx>
96 //==================================================================================================
97 static GProp_GProps props(const TopoDS_Shape& theShape)
101 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
103 BRepGProp::LinearProperties(theShape, aGProps);
105 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
107 const Standard_Real anEps = 1.e-6;
108 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
110 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
112 BRepGProp::VolumeProperties(theShape, aGProps);
114 else if (theShape.ShapeType() == TopAbs_COMPOUND)
116 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
118 aGProps.Add(props(anIt.Value()));
125 //==================================================================================================
126 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
128 if(!theShape.get()) {
131 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
132 if(aShape.IsNull()) {
135 const Standard_Real anEps = 1.e-6;
136 TopExp_Explorer anExp(aShape, TopAbs_SOLID);
137 if (anExp.More()) { // return volume if there is at least one solid
138 double aVolume = 0.0;
139 for (; anExp.More(); anExp.Next()) {
140 GProp_GProps aGProps;
141 BRepGProp::VolumeProperties(anExp.Current(), aGProps, anEps);
142 aVolume += aGProps.Mass();
146 // return surfaces area
147 GProp_GProps aGProps;
148 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
149 return aGProps.Mass();
152 //==================================================================================================
153 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
155 GProp_GProps aGProps;
156 if(!theShape.get()) {
159 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
160 if(aShape.IsNull()) {
163 const Standard_Real anEps = 1.e-6;
165 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
166 return aGProps.Mass();
169 //==================================================================================================
170 std::shared_ptr<GeomAPI_Pnt>
171 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
173 GProp_GProps aGProps;
175 return std::shared_ptr<GeomAPI_Pnt>();
177 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
178 if(aShape.IsNull()) {
179 return std::shared_ptr<GeomAPI_Pnt>();
182 if(aShape.ShapeType() == TopAbs_VERTEX) {
183 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
185 aGProps = props(aShape);
186 aCentre = aGProps.CentreOfMass();
189 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
192 //==================================================================================================
193 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
195 double aRadius = -1.0;
196 if (theCylinder->isCylindrical()) {
197 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
198 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
199 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
201 aRadius = aCyl->Radius();
206 //==================================================================================================
209 auto getExtemaDistShape = [](const GeomShapePtr& theShape1,
210 const GeomShapePtr& theShape2) -> BRepExtrema_DistShapeShape
212 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
213 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
215 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
221 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
222 const GeomShapePtr& theShape2)
224 BRepExtrema_DistShapeShape aDist = getExtemaDistShape(theShape1, theShape2);
225 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
228 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
229 const GeomShapePtr& theShape2,
230 std::array<double, 3> & fromShape1To2)
232 BRepExtrema_DistShapeShape aDist = getExtemaDistShape(theShape1, theShape2);
233 const auto & pt1 = aDist.PointOnShape1(1);
234 const auto & pt2 = aDist.PointOnShape2(1) ;
235 fromShape1To2[0] = pt2.X() - pt1.X();
236 fromShape1To2[1] = pt2.Y() - pt1.Y();
237 fromShape1To2[2] = pt2.Z() - pt1.Z();
238 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
241 //==================================================================================================
242 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
243 const std::shared_ptr<GeomAPI_Shape> theCompound,
244 const GeomAPI_Shape::ShapeType theType,
245 ListOfShape& theResuts)
248 ListOfShape aResCombinedShapes;
249 ListOfShape aResFreeShapes;
251 GeomShapePtr aResult = theCompound;
253 if(!theCompound.get()) {
257 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
261 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
262 TopAbs_ShapeEnum aTA = TopAbs_FACE;
263 if(theType == GeomAPI_Shape::COMPSOLID) {
268 // map from the resulting shapes to minimal index of the used shape from theCompound list
269 std::map<GeomShapePtr, int> anInputOrder;
270 // map from ancestors-shapes to the index of shapes in theCompound
271 NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
275 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
276 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
277 const TopoDS_Shape& aShape = anIter.Value();
278 if(aShape.ShapeType() > aTA) {
279 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
280 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
281 aResFreeShapes.push_back(aGeomShape);
282 anInputOrder[aGeomShape] = anOrder;
284 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
285 anAncestorsOrder.Bind(anExp.Current(), anOrder);
290 // Map sub-shapes and shapes.
291 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
292 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
293 if(aMapSA.IsEmpty()) {
298 // Get all shapes with common sub-shapes and free shapes.
299 NCollection_Map<TopoDS_Shape> aFreeShapes;
300 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
301 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
302 anIter(aMapSA); anIter.More(); anIter.Next()) {
303 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
304 if(aListOfShape.IsEmpty()) {
307 else if(aListOfShape.Size() == 1) {
308 const TopoDS_Shape& aF = aListOfShape.First();
310 aListOfShape.Clear();
312 NCollection_List<TopoDS_Shape> aTempList;
313 NCollection_Map<TopoDS_Shape> aTempMap;
314 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
315 aTempList.Append(aListIt.Value());
316 aTempMap.Add(aListIt.Value());
317 aFreeShapes.Remove(aListIt.Value());
319 aListOfShape.Clear();
320 for(NCollection_List<TopoDS_Shape>::Iterator
321 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
322 const TopoDS_Shape& aTempShape = aTempIter.Value();
323 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
324 anIter2(aMapSA); anIter2.More(); anIter2.Next()) {
325 TopTools_ListOfShape& aTempListOfShape = anIter2.ChangeValue();
326 if(aTempListOfShape.IsEmpty()) {
328 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
329 aTempListOfShape.Clear();
330 } else if(aTempListOfShape.Size() > 1) {
331 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
332 for (; anIt1.More(); anIt1.Next()) {
333 if (anIt1.Value() == aTempShape) {
334 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
335 for (; anIt2.More(); anIt2.Next())
337 if (anIt2.Value() != anIt1.Value()) {
338 if (aTempMap.Add(anIt2.Value())) {
339 aTempList.Append(anIt2.Value());
340 aFreeShapes.Remove(anIt2.Value());
344 aTempListOfShape.Clear();
351 aShapesWithCommonSubshapes.Append(aTempMap);
355 // Combine shapes with common sub-shapes.
356 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
357 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
359 TopoDS_CompSolid aCSolid;
360 TopoDS_Builder aBuilder;
363 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
364 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
365 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
366 const TopoDS_Shape& aShape = anExp.Current();
367 if(aShapesMap.Contains(aShape)) {
369 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
370 aShapesMap.Remove(aShape);
371 int aThisOrder = anAncestorsOrder.Find(aShape);
372 if (anOrder == -1 || aThisOrder < anOrder)
373 anOrder = aThisOrder; // take the minimum order position
376 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
377 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
378 new TopoDS_Shape(aShell);
379 aGeomShape->setImpl<TopoDS_Shape>(aSh);
380 aResCombinedShapes.push_back(aGeomShape);
381 anInputOrder[aGeomShape] = anOrder;
384 // Adding free shapes.
385 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
386 const TopoDS_Shape& aShape = anExp.Current();
387 if(aFreeShapes.Contains(aShape)) {
388 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
389 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
390 aResFreeShapes.push_back(aGeomShape);
391 anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
395 if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
396 aResult = aResCombinedShapes.front();
397 theResuts.push_back(aResult);
398 } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
399 aResult = aResFreeShapes.front();
400 theResuts.push_back(aResult);
402 TopoDS_Compound aResultComp;
403 TopoDS_Builder aBuilder;
404 aBuilder.MakeCompound(aResultComp);
405 // put to result compound and result list in accordance to the order numbers
406 std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
407 std::map<int, GeomShapePtr> aNums;
408 for(; anInputIter != anInputOrder.end(); anInputIter++)
409 aNums[anInputIter->second] = anInputIter->first;
410 std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
411 for(; aNumsIter != aNums.end(); aNumsIter++) {
412 aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
413 theResuts.push_back(aNumsIter->second);
415 aResult->setImpl(new TopoDS_Shape(aResultComp));
421 //==================================================================================================
422 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
423 NCollection_List<TopoDS_Shape>& theList)
425 if(theShape.IsNull()) {
429 if(theShape.ShapeType() == TopAbs_COMPOUND) {
430 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
431 addSimpleShapeToList(anIt.Value(), theList);
434 theList.Append(theShape);
438 //==================================================================================================
439 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
441 TopoDS_Compound aCompound;
443 BRep_Builder aBuilder;
444 aBuilder.MakeCompound(aCompound);
446 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
447 aBuilder.Add(aCompound, anIt.Value());
453 //==================================================================================================
454 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
455 const std::shared_ptr<GeomAPI_Shape> theCompound)
457 GeomShapePtr aResult = theCompound;
459 if (!theCompound.get()) {
463 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
464 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
465 addSimpleShapeToList(anInShape, anUngroupedShapes);
467 // Iterate over all shapes and find shapes with shared vertices.
468 TopTools_ListOfShape allVertices;
469 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
470 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
473 const TopoDS_Shape& aShape = aShapesIt.Value();
474 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
477 const TopoDS_Shape& aVertex = aShapeExp.Current();
478 if (!aVertexShapesMap.IsBound(aVertex)) {
479 NCollection_List<TopoDS_Shape> aList;
480 aList.Append(aShape);
481 allVertices.Append(aVertex);
482 aVertexShapesMap.Bind(aVertex, aList);
485 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
486 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
492 // Iterate over the map and group shapes.
493 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
494 while (!allVertices.IsEmpty()) {
495 // Get first group of shapes in map, and then unbind it.
496 const TopoDS_Shape& aKey = allVertices.First();
497 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
498 aVertexShapesMap.UnBind(aKey);
499 allVertices.Remove(aKey);
500 // Iterate over shapes in this group and add to it shapes from groups in map.
501 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
502 aConnectedIt.More(); aConnectedIt.Next()) {
503 const TopoDS_Shape& aConnected = aConnectedIt.Value();
504 TopTools_ListOfShape aKeysToUnbind;
505 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
508 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
509 if (!anOtherConnected.Contains(aConnected)) {
510 // Other connected group does not contain shape from our connected group
513 // Other is connected to our, so add them to our connected
514 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
517 const TopoDS_Shape& aShape = anOtherIt.Value();
518 if (!aConnectedShapes.Contains(aShape)) {
519 aConnectedShapes.Append(aShape);
522 // Save key to unbind from this map.
523 aKeysToUnbind.Append(aKeysIt.Value());
525 // Unbind groups from map that we added to our group.
526 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
529 aVertexShapesMap.UnBind(aKeysIt.Value());
530 allVertices.Remove(aKeysIt.Value());
533 // Sort shapes from the most complicated to the simplest ones
534 TopTools_MapOfShape aSortedGroup;
535 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
536 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
537 while (anIt.More()) {
538 if (anIt.Value().ShapeType() == aST) {
539 aSortedGroup.Add(anIt.Value());
540 aConnectedShapes.Remove(anIt);
547 aGroups.Append(aSortedGroup);
550 TopoDS_Compound aCompound;
551 BRep_Builder aBuilder;
552 aBuilder.MakeCompound(aCompound);
554 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
555 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
556 GeomShapePtr aGeomShape(new GeomAPI_Shape());
557 if(aGroup.Size() == 1) {
558 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
559 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
561 // make sub-shapes in the group have order same as in original shape
562 TopTools_ListOfShape anOrderedGoup;
563 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
564 for (; anUngrouped.More(); anUngrouped.Next()) {
565 if (aGroup.Contains(anUngrouped.Value()))
566 anOrderedGoup.Append(anUngrouped.Value());
568 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
569 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
570 GeomAPI_Shape::COMPSOLID,
573 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
576 if(!aCompound.IsNull()) {
577 aResult->setImpl(new TopoDS_Shape(aCompound));
583 //==================================================================================================
584 bool GeomAlgoAPI_ShapeTools::hasSharedTopology(const ListOfShape& theShapes,
585 const GeomAPI_Shape::ShapeType theShapeType)
587 TopTools_IndexedMapOfShape aSubs;
588 for (ListOfShape::const_iterator anIt = theShapes.begin(); anIt != theShapes.end(); ++anIt) {
589 TopTools_IndexedMapOfShape aCurSubs;
590 TopExp::MapShapes((*anIt)->impl<TopoDS_Shape>(), (TopAbs_ShapeEnum)theShapeType, aCurSubs);
591 for (TopTools_IndexedMapOfShape::Iterator aSubIt(aCurSubs); aSubIt.More(); aSubIt.Next()) {
592 if (aSubs.Contains(aSubIt.Value()))
595 aSubs.Add(aSubIt.Value());
601 //==================================================================================================
602 std::list<std::shared_ptr<GeomAPI_Pnt> >
603 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
605 // Bounding box of all objects.
609 for (ListOfShape::const_iterator
610 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
611 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
612 BRepBndLib::Add(aShape, aBndBox);
615 if(theEnlarge != 0.0) {
616 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
617 aBndBox.Enlarge(theEnlarge);
620 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
621 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
622 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
623 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
624 for(int i = 0; i < 2; i++) {
625 for(int j = 0; j < 2; j++) {
626 for(int k = 0; k < 2; k++) {
627 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
628 aResultPoints.push_back(aPnt);
633 return aResultPoints;
636 //==================================================================================================
637 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
638 const std::shared_ptr<GeomAPI_Shape> thePlane,
639 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
641 std::shared_ptr<GeomAPI_Face> aResultFace;
643 if(!thePlane.get()) {
647 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
648 if(aShape.ShapeType() != TopAbs_FACE) {
652 TopoDS_Face aFace = TopoDS::Face(aShape);
653 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
658 GeomLib_IsPlanarSurface isPlanar(aSurf);
659 if(!isPlanar.IsPlanar()) {
663 if(thePoints.size() != 8) {
667 const gp_Pln& aFacePln = isPlanar.Plan();
668 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
669 IntAna_Quadric aQuadric(aFacePln);
670 Standard_Real UMin, UMax, VMin, VMax;
671 UMin = UMax = VMin = VMax = 0;
672 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
673 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
674 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
675 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
676 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
677 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
678 Standard_Real aPntU(0), aPntV(0);
679 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
680 if(aPntU < UMin) UMin = aPntU;
681 if(aPntU > UMax) UMax = aPntU;
682 if(aPntV < VMin) VMin = aPntV;
683 if(aPntV > VMax) VMax = aPntV;
685 aResultFace.reset(new GeomAPI_Face());
686 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
691 //==================================================================================================
692 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
693 std::shared_ptr<GeomAPI_Vertex>& theV1,
694 std::shared_ptr<GeomAPI_Vertex>& theV2)
696 static GeomVertexPtr aVertex;
698 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
699 aVertex->setImpl(new TopoDS_Vertex());
706 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
707 TopoDS_Vertex aV1, aV2;
708 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
710 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
711 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
712 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
718 //==================================================================================================
719 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
720 const std::shared_ptr<GeomAPI_Dir> theDirection,
721 const ListOfShape& theWires,
722 ListOfShape& theFaces)
724 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
725 theDirection->impl<gp_Dir>()));
726 TopoDS_Face aFace = aMKFace.Face();
728 BRepAlgo_FaceRestrictor aFRestrictor;
729 aFRestrictor.Init(aFace, Standard_False, Standard_True);
730 for(ListOfShape::const_iterator anIt = theWires.cbegin();
731 anIt != theWires.cend();
733 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
734 aFRestrictor.Add(aWire);
737 aFRestrictor.Perform();
739 if(!aFRestrictor.IsDone()) {
743 for(; aFRestrictor.More(); aFRestrictor.Next()) {
744 GeomShapePtr aShape(new GeomAPI_Shape());
745 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
746 theFaces.push_back(aShape);
750 //==================================================================================================
751 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
753 TopoDS_Compound aCompound;
754 BRep_Builder aBuilder;
755 aBuilder.MakeCompound(aCompound);
757 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
758 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
760 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
762 if(aFindPlane.Found() != Standard_True) {
763 return std::shared_ptr<GeomAPI_Pln>();
766 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
767 gp_Pnt aLoc = aPlane->Location();
768 gp_Dir aDir = aPlane->Axis().Direction();
770 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
771 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
773 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
778 //==================================================================================================
779 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
780 const std::shared_ptr<GeomAPI_Shape> theSubShape,
781 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
783 if(!theSubShape.get() || !theBaseShape.get()) {
787 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
788 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
790 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
791 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
792 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
794 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
797 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
798 if(aBaseShape.ShapeType() == TopAbs_FACE) {
799 // Check that edge is on face surface.
800 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
801 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
802 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
804 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
808 // Check intersections.
809 TopoDS_Vertex aV1, aV2;
810 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
811 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
812 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
813 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
814 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
815 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
817 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
818 // Edge intersect face bound. Check that it is not on edge begin or end.
819 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
820 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
821 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
822 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
829 // No intersections found. Edge is inside or outside face. Check it.
830 BRepAdaptor_Curve aCurveAdaptor(anEdge);
831 gp_Pnt aPointToCheck =
832 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
833 aCurveAdaptor.LastParameter()) / 2.0);
834 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
835 ShapeAnalysis_Surface aSAS(aSurface);
836 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
837 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
838 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
852 //==================================================================================================
853 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
855 if(!theShape.get()) {
859 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
860 return (aChecker.IsValid() == Standard_True);
863 //==================================================================================================
864 std::shared_ptr<GeomAPI_Shape>
865 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
867 GeomShapePtr anOuterWire;
869 if(!theFace.get() || !theFace->isFace()) {
873 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
874 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
876 anOuterWire.reset(new GeomAPI_Shape());
877 anOuterWire->setImpl(new TopoDS_Shape(aWire));
882 //==================================================================================================
883 static bool boundaryOfEdge(const std::shared_ptr<GeomAPI_Edge> theEdge,
884 const std::shared_ptr<GeomAPI_Vertex> theVertex,
887 GeomPointPtr aPoint = theVertex->point();
888 GeomPointPtr aFirstPnt = theEdge->firstPoint();
889 double aFirstPntTol = theEdge->firstPointTolerance();
890 GeomPointPtr aLastPnt = theEdge->lastPoint();
891 double aLastPntTol = theEdge->lastPointTolerance();
893 double aFirst, aLast;
894 theEdge->getRange(aFirst, aLast);
896 bool isFirst = aPoint->distance(aFirstPnt) <= aFirstPntTol;
897 bool isLast = aPoint->distance(aLastPnt) <= aLastPntTol;
903 return isFirst != isLast;
906 bool GeomAlgoAPI_ShapeTools::isTangent(const std::shared_ptr<GeomAPI_Edge> theEdge1,
907 const std::shared_ptr<GeomAPI_Edge> theEdge2,
908 const std::shared_ptr<GeomAPI_Vertex> theTgPoint)
910 double aParE1 = 0, aParE2 = 0;
911 if (!boundaryOfEdge(theEdge1, theTgPoint, aParE1) ||
912 !boundaryOfEdge(theEdge2, theTgPoint, aParE2))
915 BRepAdaptor_Curve aC1(theEdge1->impl<TopoDS_Edge>());
916 BRepAdaptor_Curve aC2(theEdge2->impl<TopoDS_Edge>());
917 return BRepLProp::Continuity(aC1, aC2, aParE1, aParE2) >= GeomAbs_G1;
920 //==================================================================================================
921 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
922 const std::shared_ptr<GeomAPI_Face> theFace)
924 if(!theEdge.get() || !theFace.get()) {
928 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
929 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
931 BRepExtrema_ExtCF anExt(anEdge, aFace);
932 return anExt.IsParallel() == Standard_True;
935 //==================================================================================================
936 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
937 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace)
939 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
940 if(!theEdge.get() || !theFace.get()) {
944 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
945 double aFirstOnCurve, aLastOnCurve;
946 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
948 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
949 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
951 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
952 if (!anIntAlgo.IsDone())
954 // searching for points-intersection
955 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
957 if (anIntNum <= anIntAlgo.NbPoints()) {
958 anInt = anIntAlgo.Point(anIntNum);
959 } else { // take the middle point on the segment of the intersection
960 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
961 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
963 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
964 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
969 //==================================================================================================
970 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
971 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
972 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
974 // to split shape at least one point should be presented in the points container
975 if (thePointsInfo.empty())
978 // General Fuse to split edge by vertices
979 BOPAlgo_Builder aBOP;
980 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
981 // Rebuild closed edge to place vertex to one of split points.
982 // This will prevent edge to be split on same vertex.
983 if (BRep_Tool::IsClosed(aBaseEdge))
985 Standard_Real aFirst, aLast;
986 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
988 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
989 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
990 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
992 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
993 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
994 aBaseEdge.Orientation(anOrientation);
996 aBOP.AddArgument(aBaseEdge);
998 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
999 for (; aPIt != thePointsInfo.end(); ++aPIt) {
1000 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
1001 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
1002 aBOP.AddArgument(aV);
1006 if (aBOP.HasErrors())
1010 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
1011 TopTools_ListIteratorOfListOfShape anIt(aSplits);
1012 for (; anIt.More(); anIt.Next()) {
1013 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1014 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1015 theShapes.insert(anEdge);
1019 //==================================================================================================
1020 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
1021 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1022 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1024 // General Fuse to split edge by vertices
1025 BOPAlgo_Builder aBOP;
1026 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
1027 // Rebuild closed edge to place vertex to one of split points.
1028 // This will prevent edge to be split on seam vertex.
1029 if (BRep_Tool::IsClosed(aBaseEdge))
1031 Standard_Real aFirst, aLast;
1032 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
1034 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
1035 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
1037 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
1038 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
1039 aBaseEdge.Orientation(anOrientation);
1041 aBOP.AddArgument(aBaseEdge);
1043 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
1044 for (; aPtIt != thePoints.end(); ++aPtIt) {
1045 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
1046 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
1047 aBOP.AddArgument(aV);
1051 if (aBOP.HasErrors())
1055 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
1056 TopTools_ListIteratorOfListOfShape anIt(aSplits);
1057 for (; anIt.More(); anIt.Next()) {
1058 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1059 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1060 theShapes.insert(anEdge);
1064 //==================================================================================================
1065 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
1066 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1067 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1069 std::shared_ptr<GeomAPI_Shape> aResultShape;
1071 if (thePoints.size() == 2) {
1072 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
1073 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
1075 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
1077 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
1078 aLast = theShapes.end();
1079 for (; anIt != aLast; anIt++) {
1080 GeomShapePtr aShape = *anIt;
1081 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
1083 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
1084 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
1085 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
1086 anEdgeLastPoint->isEqual(aLastPoint))
1087 aResultShape = aShape;
1092 return aResultShape;
1095 //==================================================================================================
1096 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
1097 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
1098 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
1099 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1101 gp_Pnt aCentreOfMassPoint =
1102 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1103 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1104 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1105 gp_Pnt aPoint = aPrjTool.NearestPoint();
1107 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1108 aCentreOfMassPoint.Y()-aPoint.Y(),
1109 aCentreOfMassPoint.Z()-aPoint.Z()));
1114 //==================================================================================================
1115 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1117 TopoDS_Wire aFixedWire;
1118 Handle(Geom_Curve) aPrevCurve;
1119 double aPrevLastParam = -Precision::Infinite();
1121 BRep_Builder aBuilder;
1122 aBuilder.MakeWire(aFixedWire);
1124 BRepTools_WireExplorer aWExp(theWire);
1125 for (; aWExp.More(); aWExp.Next()) {
1126 TopoDS_Edge anEdge = aWExp.Current();
1127 double aFirst, aLast;
1128 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1129 if (aCurve == aPrevCurve && Abs(aFirst - aPrevLastParam) > Precision::Confusion()) {
1130 // if parametric gap occurs, create new edge based on the copied curve
1131 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1132 TopoDS_Vertex aV1, aV2;
1133 TopExp::Vertices(anEdge, aV1, aV2);
1134 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1135 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1136 aBuilder.Add(anEdge, aV1);
1137 aBuilder.Add(anEdge, aV2);
1140 aBuilder.Add(aFixedWire, anEdge);
1142 aPrevCurve = aCurve;
1143 aPrevLastParam = aLast;
1149 //==================================================================================================
1150 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1151 const std::shared_ptr<GeomAPI_Wire>& theWire)
1155 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1156 BRepTools_WireExplorer aWExp(aWire);
1157 TopoDS_Edge aNewEdge = aWExp.Current();
1160 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline
1161 // curve (non-periodic, but having equal start and end points), first of which is placed
1162 // at the end on the curve and second is placed at the start, this workaround copies
1163 // second curve to avoid treating these edges as a single curve by setting trim parameters.
1164 aWire = fixParametricGaps(aWire);
1165 aWire = BRepAlgo::ConcatenateWire(aWire, GeomAbs_G1); // join smooth parts of wire
1166 aNewEdge = BRepAlgo::ConcatenateWireC0(aWire); // join C0 parts of wire
1168 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1169 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1174 //==================================================================================================
1175 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1177 ListOfShape aSubShapes;
1179 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1180 !theShape->isShell() && !theShape->isWire()) {
1184 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1185 GeomShapePtr aSubShape = anIt.current();
1186 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1187 aSubShape->isFace() || aSubShape->isSolid()) {
1188 aSubShapes.push_back(aSubShape);
1190 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));
1197 //==================================================================================================
1198 static void getMinMaxPointsOnLine(const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1199 const gp_Dir theDir,
1200 double& theMin, double& theMax)
1202 theMin = RealLast();
1203 theMax = RealFirst();
1204 // Project bounding points on theDir
1205 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
1206 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
1207 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
1208 gp_Dir aPntDir (aPnt.XYZ());
1209 Standard_Real proj = (theDir*aPntDir) * aPnt.XYZ().Modulus();
1210 if (proj < theMin) theMin = proj;
1211 if (proj > theMax) theMax = proj;
1215 //==================================================================================================
1216 void GeomAlgoAPI_ShapeTools::computeThroughAll(const ListOfShape& theObjects,
1217 const ListOfShape& theBaseShapes,
1218 const std::shared_ptr<GeomAPI_Dir> theDir,
1219 double& theToSize, double& theFromSize)
1221 // Bounding box of objects
1222 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndObjs =
1223 GeomAlgoAPI_ShapeTools::getBoundingBox(theObjects);
1224 if (aBndObjs.size() != 8) {
1228 // the value to enlarge the bounding box of each object to make the extruded shape
1229 // a little bit larger than overall objects to get the correct result of Boolean CUT operation
1230 double anEnlargement = 0.1 * aBndObjs.front()->distance(aBndObjs.back());
1234 // One direction for all prisms
1235 gp_Dir aDir = theDir->impl<gp_Dir>();
1237 // Bounding box of the base
1238 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1239 GeomAlgoAPI_ShapeTools::getBoundingBox(theBaseShapes);
1240 if (aBndBases.size() != 8) {
1245 Standard_Real lowBnd, upperBnd;
1246 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1249 Standard_Real lowBase, upperBase;
1250 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1252 // ----------.-----.---------.--------------.-----------> theDir
1253 // lowBnd lowBase upperBase upperBnd
1255 theToSize = upperBnd - lowBase;
1256 theFromSize = upperBase - lowBnd;
1258 // Direction is a normal to each base shape (different normals to bases)
1259 // So we calculate own sizes for each base shape
1263 for (ListOfShape::const_iterator anIt = theBaseShapes.begin();
1264 anIt != theBaseShapes.end(); ++anIt) {
1265 const GeomShapePtr& aBaseShape_i = (*anIt);
1266 ListOfShape aBaseShapes_i;
1267 aBaseShapes_i.push_back(aBaseShape_i);
1269 // Bounding box of the base
1270 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1271 GeomAlgoAPI_ShapeTools::getBoundingBox(aBaseShapes_i, anEnlargement);
1272 if (aBndBases.size() != 8) {
1276 // Direction (normal to aBaseShapes_i)
1277 // Code like in GeomAlgoAPI_Prism
1279 const TopoDS_Shape& aBaseShape = aBaseShape_i->impl<TopoDS_Shape>();
1280 BRepBuilderAPI_FindPlane aFindPlane(aBaseShape);
1281 if (aFindPlane.Found() == Standard_True) {
1282 Handle(Geom_Plane) aPlane;
1283 if (aBaseShape.ShapeType() == TopAbs_FACE || aBaseShape.ShapeType() == TopAbs_SHELL) {
1284 TopExp_Explorer anExp(aBaseShape, TopAbs_FACE);
1285 const TopoDS_Shape& aFace = anExp.Current();
1286 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(TopoDS::Face(aFace));
1287 if(aSurface->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
1288 Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
1289 Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
1290 aSurface = aTrimSurface->BasisSurface();
1292 if(aSurface->DynamicType() != STANDARD_TYPE(Geom_Plane)) {
1295 aPlane = Handle(Geom_Plane)::DownCast(aSurface);
1297 aPlane = aFindPlane.Plane();
1299 aDir = aPlane->Axis().Direction();
1305 Standard_Real lowBnd, upperBnd;
1306 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1309 Standard_Real lowBase, upperBase;
1310 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1312 // ----------.-----.---------.--------------.-----------> theDir
1313 // lowBnd lowBase upperBase upperBnd
1315 double aToSize_i = upperBnd - lowBase;
1316 double aFromSize_i = upperBase - lowBnd;
1318 if (aToSize_i > theToSize) theToSize = aToSize_i;
1319 if (aFromSize_i > theFromSize) theFromSize = aFromSize_i;